Surveying Extended GMSB Models with mh=125 GeV
Abstract
In order to achieve maximal stop mixing and m_h=125 GeV, we consider extensions of minimal GMSB that include marginal MSSM-messenger superpotential interactions. Using a new approach to analytic continuation in superspace, we derive general formulas for the soft masses in the presence of such interactions, correctly taking into account the role of MSSM-messenger mixing in a general framework for the first time. We classify and catalog all possible such interactions consistent with perturbative SU(5) unification, and we survey the impact of turning on one interaction at a time, from the point of view of fine tuning, spectrum and phenomenology. We find that the best models are fine-tuned to the sub-percent level and are accessible at the 14 TeV LHC. We highlight potential search strategies that can probe the characteristic spectra of these models.
Keywords
Cite
@article{arxiv.1303.0228,
title = {Surveying Extended GMSB Models with mh=125 GeV},
author = {Jared A. Evans and David Shih},
journal= {arXiv preprint arXiv:1303.0228},
year = {2015}
}
Comments
33 pages, 6 figures, 4 tables; v3 - typos corrected